61668327 has 8 divisors (see below), whose sum is σ = 93970816. Its totient is φ = 35239032.

The previous prime is 61668311. The next prime is 61668349. The reversal of 61668327 is 72386616.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61668327 - 2⁴ = 61668311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61668527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1468273 + ... + 1468314.

It is an arithmetic number, because the mean of its divisors is an integer number (11746352).

Almost surely, 2^61668327 is an apocalyptic number.

61668327 is a deficient number, since it is larger than the sum of its proper divisors (32302489).

61668327 is a wasteful number, since it uses less digits than its factorization.

61668327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2936597.

The product of its digits is 72576, while the sum is 39.

The square root of 61668327 is about 7852.9183747190. The cubic root of 61668327 is about 395.0821321493.

The spelling of 61668327 in words is "sixty-one million, six hundred sixty-eight thousand, three hundred twenty-seven".